[patch 19/26] posix-timers: Add cancel/arm callbacks

[Thomas Gleixner]

Add timer_try_to_cancel() and timer_arm() callbacks to kclock which allow
to make common_timer_set() usable by both hrtimer and alarmtimer based
clocks.

Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
 include/linux/posix-timers.h |    3 +++
 1 file changed, 3 insertions(+)

Index: b/include/linux/posix-timers.h
===================================================================
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -126,6 +126,9 @@ struct k_clock {
        void    (*timer_rearm)(struct k_itimer *timr);
        int     (*timer_forward)(struct k_itimer *timr, ktime_t now);
        ktime_t (*timer_remaining)(struct k_itimer *timr, ktime_t now);
+       int     (*timer_try_to_cancel)(struct k_itimer *timr);
+       void    (*timer_arm)(struct k_itimer *timr, ktime_t expires,
+                            bool absolute, bool sigev_none);
 };
 
 void run_posix_cpu_timers(struct task_struct *task);